1. Department of General Surgery, Bozok University, Yozgat, Turkey.
2. Second Department of General Surgery, Haydarpasa Numune Teaching and Research Hospital, Istanbul, Turkey.
3. Department of Radiology, Kars State Hospital, Kars, Turkey.
4. Department of Thoracic Surgery, Kars State Hospital, Kars, Turkey.
5. Second Department of General Surgery, Vakif Gureba Teaching and Research Hospital, Istanbul, Turkey.